Viewing glass for microfilm



FIG. 1 is a front elevational view of a viewing glass for microfilm showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof.

The left side elevational view is omitted because it is substantially symmetrical with respect to the right side elevational view. 

The ornamental design for a viewing glass for microfilm, substantially as shown and described. 